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作者 itsweb 在 PTT [ tutor ] 看板的留言(推文), 共104則
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5F推: 9我會畫中垂線 中垂線上面才是圓心可能的位置01/20 23:31
6F→: (表示到(2,6)距離比到(0,0)距離小)01/20 23:31
2F→: 面積比應該可以得到結果10/15 14:03
9F推: 聯立是"且" 不是"或" 不應該說兩平行線07/02 13:55
10F→: (x+y-5)(2x+2y-6)=0才是兩平行線07/02 13:56
2F推: (1+0.07)(1-0.07)06/14 00:14
1F推: 旋轉矩陣會指定旋轉特定角度05/22 23:02
20F推: 不過如果說x^2-3x+2=0 則x=1或2或3 這樣也不知是否算對05/05 17:14
28F推: 我知道阿 所以我才會這樣問 XD05/06 22:17
4F推: 我教高中 這題也會拿(b+c)/2作為中位數01/29 12:08
5F→: e做為中位數有被切到 就會拿掉 用abcd的中間01/29 12:08
6F→: 更正 拿(b+c)/2作為第一四分位01/29 12:09
3F推: AD=tAP=t(2/5 AB+1/5 AC)=2t/5 AB+3t/5 AC12/15 13:29
4F→: DBC共線=>2t/5 + 3t/5=112/15 13:30
5F→: 更正 以上的3t都要改成t..12/15 13:37
3F推: 可以說向量垂直 不能說線段(直線)垂直10/27 10:32
6F推:n+1個點 最多只能構成唯一的n次多項式07/21 12:10